Mcdowell darrow



M. 12-. DARROW. APPARATUS FOR HEATING TIRES.

No. 66,952. Patented July 23 18-67.

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McDOWELL DARROW, OF ROCHESTER, NEW YORK. Letters Patent No. 66,952,dated July 23, 1867.

IMPROVED APPARATUS FOR HEATING TIRES.

T0 ALI. WHOM IT MAYQCONCERN':

Be it known that I, McDOWELnDARROW, of Rochester, in the county ofMonroe, and State of New York,

have invented a certain new and use ful improvement in Tire-Heaters;andI do hereby declare that the-follow. ing is a full andexact-description thereof, reference bei'ng had 'to the accompanyingdrawings, mahing par of this specification. Y I I v I Figure l is a planoi my improved heaterfi th a portion of the cover broken away to snowthe interio arrangement.

Figure 2 is an elevation thereof.

Figure 3 is a-vertieal section.' i

. Like letters of referenceindie'ate corresponding parts in all thefigures.

' t This arrangement is intended for heating tires to'apply to wheels.The invention consists in an annular heating-chamber, formed incompartments.whose'partitions extend pa'rz way up, the eiiect being toequalize the burning of the fuel around the tire,b u t atthe' same timeallow the necessary draught; and furthermore, in connection therewith,the employment of'registers o'ver thecompartmcnts, for the admission ofair to further equalize the combustion and the heating o f the tire. i 5I As represented in the drawings, A is an annular chamber of suflicicntsize to receive ordinary tires of different diameters; -and B is aremovable cover that fits closely over it. The draught is admittedthrough doorsat a, and discharges through smoke pipcat b. The interiorof the chamber isdivided into a series of compartments, '0 c, bypartitions d dywhieh, however, extend but part way up, and serve tosupport the tire thereonns it is being heated. Over'the compartments isa series of registers, ff, in the cover. I -The charcoal'or other fuelis placed in the compartments, around the tire, and ignited. Were it notfor the compartments the fire would sweep around from the doors aand-burn unequally. The partitions, extending only part way up theheight of the chambenallow the necessary passage for the draught overthem, but at the same time obstruct the passage of the fire, and thusproduces an equality in the combustion that could not otherwise beobtained. g

The employment of the registersffin the cover also serves to equalizethe-combustion by allowing cold air to enter at any desired point, andthereby deaden the burning at that point. They also serve to equalizethe heat of the tire by'equalizing the combustion. They further serve aspeen holes to determine the state of thetire. at any time.

What .I claim as my invention, and desire to secure by Letters Patent,is-

A tire-heater, having compartments 0 c, and registersff, and which isotherwise constructed and arranged as described, and which operates asherein set forth. I I

In witness whereof I have hereunto signed my name in the presence of twosubscribing witnesses.

MCDOWELL ,DARROW.

Witnesses:

R. F. Oseoon, 0. W. HAM-a

